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To Finish the Body of the City
Vitkovič, Michal ; Kosek, Filip (referee) ; Hora, Jan (advisor)
The proposal verifies the possibilities of completing the land on the edge of the historic centre in the form of a city block, within the extreme limits set by its narrow dimensions. The apparent disadvantages - the spatial limitation and the position on a slope - become an opportunity to create a variety of atmospheres and situations, different levels of height, partitions and connections. The concept reflects the phenomena of city coalescence, the end of the dominance of cars, addressing the lack of affordable housing and increasing the density of the city and place. The infill of the mixed-use building consists mainly of flats designed for population groups threatened by the current housing crisis - young people and the socially disadvantaged. The housing programme is complemented by council flats. The proposal seeks to provide service, leisure and social opportunities. The flats have private gardens located on green roofs and communal seating areas. An important part of the block is the community centre. In line with the concept of short distances, there are also shops and a café with a bookshop on the ground floor. In the part of the plot close to the city centre we find a small public square with greenery. Parking is located mostly in a semi-flooded basement, which gradually rises to the terrain and creates a platform for residential buildings. The contrast of the concrete base and the brick linear blocks is the main characteristic of the simple facades. The new urban block also reshapes the character of the surrounding streets, humanising them and integrating the urban fabric.
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To Finish the Body of the City
Vitkovič, Michal ; Kosek, Filip (referee) ; Hora, Jan (advisor)
The proposal verifies the possibilities of completing the land on the edge of the historic centre in the form of a city block, within the extreme limits set by its narrow dimensions. The apparent disadvantages - the spatial limitation and the position on a slope - become an opportunity to create a variety of atmospheres and situations, different levels of height, partitions and connections. The concept reflects the phenomena of city coalescence, the end of the dominance of cars, addressing the lack of affordable housing and increasing the density of the city and place. The infill of the mixed-use building consists mainly of flats designed for population groups threatened by the current housing crisis - young people and the socially disadvantaged. The housing programme is complemented by council flats. The proposal seeks to provide service, leisure and social opportunities. The flats have private gardens located on green roofs and communal seating areas. An important part of the block is the community centre. In line with the concept of short distances, there are also shops and a café with a bookshop on the ground floor. In the part of the plot close to the city centre we find a small public square with greenery. Parking is located mostly in a semi-flooded basement, which gradually rises to the terrain and creates a platform for residential buildings. The contrast of the concrete base and the brick linear blocks is the main characteristic of the simple facades. The new urban block also reshapes the character of the surrounding streets, humanising them and integrating the urban fabric.
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Use of portable Raman spectrometers for detection of sulfates: potential application in exobiology
Košek, Filip ; Jehlička, Jan (advisor) ; Němec, Ivan (referee)
The detection of mineral phases under in situ conditions has become a primary but sometimes also challenging task in many fields of geoscience. Raman spectroscopy has been used as a powerful tool for the identification of various minerals and organic compounds. The advantages and the relative simplicity made this method a promising choice in the future planetary exploration missions to Mars. The deposits of aqueous minerals including sulfates have been found on the Martian surface. With the development of miniaturized handheld spectrometers there is a need for evaluation of Raman spectroscopy as a method of identification of sulfate phases in their natural conditions. In the first part of this work a handheld spectrometer equipped with 532 nm excitation laser was tested under laboratory conditions during which the ability to distinguish mineral samples representing sulfates of different chemical composition and different degree of hydration was investigated. In the second part, two handheld Raman spectrometers equipped with 532 and 785 nm excitation lasers were used for the characterization of sulfate phases on sites of their natural occurrence located in the Czech Republic. The quality of the Raman spectra acquired under outdoor conditions by both spectrometers was rather average but sufficient to...
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Application of Raman spectroscopy for detection of sulfates of self-ignited coal heaps
Košek, Filip ; Jehlička, Jan (advisor) ; Němec, Ivan (referee) ; Vandenabeele, Peter (referee)
This Ph.D. thesis was focused on the application of Raman spectroscopy as the main analytical method for the characterization of neo-formed minerals, notably sulfates, from burning coal waste dumps. This environment associated with subsurface fires gives rise to a variety of uncommon and rare minerals. The specific features of these minerals (metastability, hygroscopy, mixed aggregates) causes that the mineralogical investigation is a challenging task using traditional laboratory-based techniques. Advantages such as the non-destructive nature, the sensitivity to the changes in the hydration degree of sulfates, little or none pretreatment, and the option of measurements directly in the field were the main reasons for applying this spectroscopy method. The scarce availability of spectroscopic data of most gas-vent minerals can be considered as the disadvantage. Therefore, artificial prepared samples of six anhydrous sulfates, which are rarely found in nature, were analyzed by Raman laboratory spectroscopy and a miniature a Raman spectrometer, and specific Raman features as well the differences with hydrated counterparts are shown. Laboratory investigation of two natural hydrated aluminum sulfates, alunogen and khademite, were carried out using Raman spectroscopy and other methods in order to obtain...
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Detekce apikulátních a ušlechtilých kvasinek v kvasícím moštu pomocí PCR
Kosek, Filip
In this diploma thesis we investigate how wine characteristics is influenced by the apiculate wine yeast Metschnikowia pulcherrima. For this purpose, two wines of a grape variety Welschriesling were manufactured using an identical technological approach with the only distinction: two separated musts were supplied with broth containing different yeasts. The literary part of the thesis discusses yeasts used in winery in general. We describe both apiculate yeasts and Saccharomyces. In this part, we also further discuss the polymer chain reaction and similar methods. The experimental part deals with possibilities of Metschnikowia pulcherrima DNA isolation from fermenting must and the subsequent quantification of yeasts with help of the real-time PCR method. After evaluation and comparison of the wines, where both general and expert public participated, it was concluded that the yeasts substantially influence the wine cha-racteristics.
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Use of portable Raman spectrometers for detection of sulfates: potential application in exobiology
Košek, Filip ; Jehlička, Jan (advisor) ; Němec, Ivan (referee)
The detection of mineral phases under in situ conditions has become a primary but sometimes also challenging task in many fields of geoscience. Raman spectroscopy has been used as a powerful tool for the identification of various minerals and organic compounds. The advantages and the relative simplicity made this method a promising choice in the future planetary exploration missions to Mars. The deposits of aqueous minerals including sulfates have been found on the Martian surface. With the development of miniaturized handheld spectrometers there is a need for evaluation of Raman spectroscopy as a method of identification of sulfate phases in their natural conditions. In the first part of this work a handheld spectrometer equipped with 532 nm excitation laser was tested under laboratory conditions during which the ability to distinguish mineral samples representing sulfates of different chemical composition and different degree of hydration was investigated. In the second part, two handheld Raman spectrometers equipped with 532 and 785 nm excitation lasers were used for the characterization of sulfate phases on sites of their natural occurrence located in the Czech Republic. The quality of the Raman spectra acquired under outdoor conditions by both spectrometers was rather average but sufficient to...
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Use of miniaturized Raman spectrometers under field conditions (sulphates)
Košek, Filip ; Jehlička, Jan (advisor) ; Osterrothová, Kateřina (referee)
Sulphates represent apparently an important component of Martian rocks and regolith. Their detection and identification is an integral part of the planned exploration missions, as they provide valuable information about the geological history of the planet. Also they could play a crucial exobiological role related with the possibility of existence of extinct or extant Martian life. This thesis provides a comprehensive overview of the occurrence and the geological situation of sulphates on the surface of Mars. The basic genetic factors responsible for formation of sulphates are introduced in terrestrial and Martian conditions. Furthermore, their significance is explained as indicators of geological factors and their connection with a possible Martian life. The second part presents method of Raman spectroscopy and its application in exobiology. The advantages and limitations of laboratory and portable instruments for analyzes exobiological samples are described. Identification capabilities of this method for determination of sulphates are shown, as well as its use on real locations considered as exobiological analogues. At the end, the current concept of Raman spectrometer for ExoMars rover is introduced. Keywords: Miniaturized Raman spectrometers, field conditions, sulphates
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Vliv lokality na analytické a senzorické parametry vína u odrůdy Ryzlink vlašský
Kosek, Filip
Within this bachelor thesis the influence of terroir on wine has been investigated. For this purpose there were made two wines from the variety Riesling Italico by the same technological procedure, but from grapes originating from two different vineyards. The theoretical part deals with a general problem of classification of wines, that are used -- German style and Romanic style. Furthermore the issue of appellation system in the world and in the Czech Republic is elaborated. Subsequently there is briefly described the characteristics of the variety Riesling Italico. In the experimental part there are characterized the vineyards Valtická and Železná, where grapes used for production of investigated wines originate from. The vineyards were described with respect to their geographical location, composition and character of soil, altitude and exposure. Furthermore, the technological process of production of the two wines, which was identical for both samples, was analyzed. The produced musts and wines were analyzed and compared by the means of chemical analysis. The finished wine was examined organoleptically by laymen and experts. This evaluation showed that terroir has a major impact on quality of resulting wine.
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